class_docstr: A class that handles the parameters of Tensor Tracer.
docstr: Returns a tuple of supported signatures.
docstr_tok: ["Returns","a","tuple","of","supported","signatures","."]
code: def _supported_signatures(self):
      """Returns a tuple of supported signatures."""
      return TT_SUMMARY_SIGNATURES
  
imports: import os
  import os.path
  import re
  from absl import flags
  from tensorflow.python.ops import linalg_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import tf_logging
label_desc: Use image node_id 11 for calling the TTParameters obj's underlying member method code with example usage: obj._supported_signatures() and returns: TT_SUMMARY_SIGNATURES